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WO1999023810A1 - Procede de prepaiement utilisant des informations de credit stockees dans des terminaux mobiles pour acceder a un reseau de telecommunications sans fil - Google Patents

Procede de prepaiement utilisant des informations de credit stockees dans des terminaux mobiles pour acceder a un reseau de telecommunications sans fil Download PDF

Info

Publication number
WO1999023810A1
WO1999023810A1 PCT/SE1998/001963 SE9801963W WO9923810A1 WO 1999023810 A1 WO1999023810 A1 WO 1999023810A1 SE 9801963 W SE9801963 W SE 9801963W WO 9923810 A1 WO9923810 A1 WO 9923810A1
Authority
WO
WIPO (PCT)
Prior art keywords
subscriber
credit information
prepayment
credit
mobile terminal
Prior art date
Application number
PCT/SE1998/001963
Other languages
English (en)
Inventor
Ulises Olvera-Hernandez
Vu Nguyen
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Priority to BR9813313-6A priority Critical patent/BR9813313A/pt
Priority to AU10578/99A priority patent/AU1057899A/en
Publication of WO1999023810A1 publication Critical patent/WO1999023810A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/32—Involving wireless systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present invention relates generally to prepayment methods for accessing wireless telecommunication networks. More specifically, the invention relates to a prepayment method that enables subscriber credit information to be easily accessible by a plurality of compatible wireless networks thereby permitting prepaid roaming.
  • prepayment systems have been increasingly popular among service providers with many expeditiously being put into operation to obtain the additional revenue generated from more subscribers.
  • Many of these prior art prepayment systems are self-contained units that are coupled to the mobile switching center (MSC) of the wireless network.
  • MSC mobile switching center
  • customers are required to purchase a prepaid card containing credit that entitles them to a limited amount of calling time.
  • the prepaid cards purchased by customers may be of a disposable variety i.e. only used once or may be reused by paying to replenish the credit stored therein.
  • a major disadvantage of the prior art prepayment methods as described is that the prepayment systems only work with the network it is attached to and thus does not permit subscribers to roam to other networks.
  • a further complication is that various networks may be employing incompatible prepayment systems that do not support the prepaid subscribers of other networks. At present there exists no prevailing standard for communication between the various prepayment systems in use by different networks.
  • a further disadvantage with the prior art method is that the subscriber is required to go out and purchase a prepaid card which is inconvenient and time consuming.
  • the invention discloses a method of prepaying for access to a wireless telecommunication network by storing updated subscriber credit information within the mobile terminal, which is subsequently available for use by other networks.
  • the method includes registering for service with a wireless network by, for example, switching on a mobile terminal.
  • the subscriber credit information previously stored within the mobile terminal is transmitted to a prepayment node operating in association with the wireless network.
  • the subscriber credit information which may include a prepaid credit balance in dollars, is transmitted via the Over-the-Air-Teleservice (OATS) function as specified in the IS- 136 standard.
  • OFATS Over-the-Air-Teleservice
  • the cost of the call is calculated by the prepayment node and deducted from the received prepaid credit balance to determine an updated credit balance.
  • the updated credit balance is transmitted via OATS to the mobile terminal for storage therein.
  • the newly stored updated credit balance in the mobile terminal is then accessible by any network that has the capability of accessing the credit information.
  • the present invention contemplates a method for subscribers to utilize prepaid wireless services that allows them to roam to other compatible networks without the need for a connection to the prepayment node of the subscriber's home provider. Furthermore, the invention only requires minimal modification to existing networks and equipment in a technique that is efficient and transparent to the subscriber.
  • Fig. 1 shows an exemplary wireless network attached to a prepayment system operating in accordance with an embodiment of the present invention
  • Fig. 2 depicts a flow diagram illustrating the process steps for the prepayment system operating in accordance with the embodiment.
  • a mobile switching center In a basic cellular telecommunication system, a mobile switching center (MSC) is linked to a plurality of base stations by a series of digital transmission links.
  • the base stations are geographically dispersed to form an area of coverage for the system.
  • Each base station (BS) is designated to cover a specified area, known as a cell, in which two way radio communication can take place between a mobile terminal (MT) and the BS in the associated cell.
  • MT mobile terminal
  • Fig. 1 shows an exemplary wireless network attached to a prepayment system operating in accordance with an embodiment of the present invention.
  • the network is depicted in simplified form by showing only a single base station and an associated cell.
  • the network comprises an mobile subscriber represented by MT 10 which is in wireless communication with BS 12.
  • the MT 10 may be operating within a service area 11 that may be a home service area for the subscriber or a visiting service area when roaming, for example.
  • the BS 12 is typically coupled to MSC 14 by a digital pulse code modulation (PCM) link capable of efficiently delivering digital data over vast distances.
  • PCM digital pulse code modulation
  • PPN prepayment node 16
  • the PPN 16 is linked to a home location register 18 (HLR) which contains relevant information and profiles of subscribers to the network.
  • the PPN 16 utilizes information from the HLR 18 in order to calculate the appropriate billing data for the subscriber.
  • HLR home location register 18
  • the exemplary embodiment depicts a wireless network operating in accordance with the enhanced Digital Advanced Mobile Phone System (D-AMPS) as specified in TIA IS-136 Rev A.
  • D-AMPS Digital Advanced Mobile Phone System
  • TIA IS-136 Rev A TIA IS-136 Rev A
  • OATS Over-the-Air-Teleservice
  • SMS short message service
  • OAA Over-the-Air- Activation
  • the feature code entry results in the establishment of a voice call to the service provider's customer service center 20 (CSC) which in turn exchanges the necessary information with the MT and initiates the procedures needed to establish an account such as billing information, credit worthiness, and to set up service options.
  • CSC customer service center 20
  • This process is also referred to as Subscriber Activation and results in a new subscriber record being created in the HLR via the CSC-HLR interface.
  • OATS teleservice messages such as those associated with OAA differ from those associated with SMS in that they may include active commands that initiate the MT to perform an activity instead of, as in SMS, merely displaying text messages.
  • the transport path of OAA messages is otherwise identical to that for SMS.
  • the OATS mechanism provides an inherently efficient means for exchanging information in which to implement with prepayment applications that store credit information within the MT.
  • the subscriber can subscribe to the prepayment service by entering a feature code which causes automatic programming of MT 10 for prepayment services by the PPN system 16.
  • PPN 16 utilizes the OATS mechanism to program into the terminal with, for example, the subscriber's credit balance in dollars and an optional PIN code.
  • credit may be established with the service provider by the subscriber using convenient means such as keying in a credit card number or transferring money from a bank account, for example.
  • the credit information is stored in an existing programmable memory in the mobile terminal that is used for storing status parameters needed for operation. For example, stored information may include information on roaming partners, preferred systems, and system parameters, in addition to personal information such as credit card, calling card etc.
  • Fig. 2 depicts a flow diagram of a typical prepayment procedure operating in accordance with the embodiment of the present invention.
  • the subscriber switches on his/her mobile terminal to initiate registration with a service provider having prepaid service capability.
  • the service provider may be the subscriber's home service provider or, in the case of roaming, a visiting service provider having compatible prepayment service capability.
  • the subscriber's credit information i.e. prepaid credit balance in dollars and PIN code stored in MT 10 are transmitted at step 26 to the PPN 16 (Fig. 1) of the wireless network via the OATS transport mechanism.
  • a authentication procedure is performed in step 28 wherein the user may be prompted to enter a PIN code which is transmitted to PPN 16 to be compared with the PIN initially received.
  • PIN the PIN
  • the subscriber is permitted to make and receive calls within the confines of their available credit.
  • step 29 the credit balance is verified for sufficient funds prior to making a call in order to proceed. For example, the balance must be in excess of that required for at least 2 minutes of talk time or any minimum time period set by the service provider. If the credit balance is insufficient the subscriber is notified via a voice message (step 31), for example, and the call is terminated (step 33). When the balance is determined to be sufficient the process proceeds to step 30 where the PPN 16 calculates an initial estimation of time the subscriber may engage in conversation based on the credit balance and current tariff plan e.g. tariff at time of day, long distance charge etc. The estimated talk time is then relayed to the subscriber through a voice prompt in step 30.
  • the PPN 16 calculates an initial estimation of time the subscriber may engage in conversation based on the credit balance and current tariff plan e.g. tariff at time of day, long distance charge etc.
  • the estimated talk time is then relayed to the subscriber through a voice prompt in step 30.
  • an alternative notification technique would be to send an SMS message to the mobile terminal for display to the subscriber.
  • a call duration timer is started to monitor the length of the call and the elapsed time in relation to the remaining credit for billing in real time.
  • a verification is performed to determine if the progressively decreasing credit is above a minimum preset value set by the provider. If the credit is okay, the call continues to step 35. If not, periodic warnings (step 36), e.g. verbal, are initiated to notify the subscriber e.g. every 10 seconds until the credit decreases to zero thus causing the call to be forcibly terminated in step 38.
  • periodic warnings e.g. verbal
  • the PPN 16 in step 40 calculates the cost of the call and determines a new credit balance i.e. the amount of credit the subscriber has left.
  • the new credit information is then updated within the prepayment system and transmitted to MT 10 to be stored therein using the OATS transport mechanism.
  • the visited network may be reimbursed for credit used by a roaming subscriber by, for example, a third party clearing house or through the previously established roaming agreements with the subscriber's home network.
  • the present invention contemplates a prepayment system that permits prepaid roaming by subscribers to other compatible networks without the need for connection to the prepayment node of the subscriber's home provider.
  • networks both home and visited, can dynamically update subscriber credit in a way that is convenient, efficient and transparent to the user.
  • the invention requires minimal modification to networks operating in accordance with IS- 136 standard that currently have the capability for OATS functionality.
  • an alternative use of the stored prepaid credit in the mobile terminals may be for a convenient method of payment for various unrelated services.
  • charges or fees may be automatically deducted from the prepaid credit when crossing toll gates along highways. Any number of payment applications may be adapted to utilize and take advantage of the credit carrying capabilities herein described.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Computer Security & Cryptography (AREA)
  • Meter Arrangements (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un procédé d'accès par prépaiement à un réseau de télécommunications sans fil doté d'un mécanisme permettant de stocker des informations de crédit d'abonné dans un terminal mobile. Le procédé est spécialement intéressant pour les abonnés itinérants se déplaçant dans des réseaux visités et où ils peuvent accéder à des informations de crédit. Dans l'une des réalisations de l'invention, le procédé consiste à transférer les informations de crédit d'abonné précédemment stockées, du terminal mobile à un noeud de prépaiement du réseau au moment de l'enregistrement. Lesdites informations de crédit qui peuvent être un solde de crédit prépayé en dollars sont transmises par un téléservice aérien (OATS) conforme à la norme IS-136. Lors d'un appel le prix de la communication basé sur le tarif courant est calculé par ledit noeud de prépaiement et déduit du solde de crédit initial pour sa mise à jour. Le nouveau solde de crédit est transmis via (OATS) au terminal mobile pour y être stocké et se trouve désormais utilisable par tout réseau compatible.
PCT/SE1998/001963 1997-10-31 1998-10-30 Procede de prepaiement utilisant des informations de credit stockees dans des terminaux mobiles pour acceder a un reseau de telecommunications sans fil WO1999023810A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR9813313-6A BR9813313A (pt) 1997-10-31 1998-10-30 Processo de pré-pagamento para acesso a uma rede de telecomunicações sem fio por um assinante móvel e sistema de pré-pagamento para acessar serviços a partir de uma rede de telecomunicações sem fio
AU10578/99A AU1057899A (en) 1997-10-31 1998-10-30 Prepayment method utilizing credit information stored in mobile terminals for accessing wireless telecommunication network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/961,947 1997-10-31
US08/961,947 US6070067A (en) 1997-10-31 1997-10-31 Prepayment method utilizing credit information stored in mobile terminals for accessing wireless telecommunication networks

Publications (1)

Publication Number Publication Date
WO1999023810A1 true WO1999023810A1 (fr) 1999-05-14

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PCT/SE1998/001963 WO1999023810A1 (fr) 1997-10-31 1998-10-30 Procede de prepaiement utilisant des informations de credit stockees dans des terminaux mobiles pour acceder a un reseau de telecommunications sans fil

Country Status (5)

Country Link
US (1) US6070067A (fr)
AR (1) AR018514A1 (fr)
AU (1) AU1057899A (fr)
BR (1) BR9813313A (fr)
WO (1) WO1999023810A1 (fr)

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